HUBBLE SPACE TELESCOPE
DAILY REPORT #2390
PERIOD COVERED: 0000Z (UTC) 06/09/99 - 0000Z (UTC) 06/10/99
Daily Status Report as of 161/0000Z
1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:
1.1 Completed Two Sets of WF/PC-2 7621 (WF/PC-2 Cycle 7 Supplemental
Darks PT1/3)
The WF/PC-2 was used to make supplemental dark calibration images.
This set of calibrations is intended to obtain three dark frames every day
to provide data for monitoring and characterizing the evolution of hot
pixels. The observations were executed with no anomalies.
1.2 Completed S/C 8536 (GS Acq test for 8267)
A guide star acquisition was conducted using Target Star A and B.
The is a robust test of the guide stars to be used by proposal 8267. The
acquisition was executed as scheduled, and no anomalies were noted.
1.3 Completed WF/PC-2/STIS/CCD 7615 (Determination of the Mass Function
of a Globular Cluster Through Gravitational Microlensing)
The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD) were
used to make gravitational microlensing observations of the large globular
cluster NGC-6656 located in Sagittarius in order to study its mass
function. Gravitational microlensing offers a unique and direct method of
determining the masses of stars and other compact objects down to planetary
masses. A bias and dark calibration observations were also taken. The
observations were completed as planned, and no problems were reported.
1.4 Completed Two Sets of STIS/CCD 7949 (CCD Dark and Bias Monitor --
Cont. to June 99)
The Space Telescope Imaging Spectrograph (CCD) was used to conduct a
CCD dark calibration and a bias monitoring program. It was also scheduled
to track the growth of hot pixels on the CCD in general and within the
various target acquisition apertures specifically. The observations were
executed as scheduled, and no anomalies were noted.
1.5 Completed Two Sets of WF/PC-2 8053 (WF/PC-2 Cycle-7 Earth Flats --
Part II)
The WF/PC-2 was used to take Earth flat calibration images. This
proposal obtains sequences of Earth streak flats to construct high quality
flat fields for the WF/PC-2 filter set. The observations were executed as
scheduled with no anomalies.
1.6 Completed STIS/CCD 8172 (STIS Deep DLA Imaging Survey II)
The Space Telescope Imaging Spectrograph (CCD) was used to make deep
observations of quasar/alpha galaxy Q2233+131. The HST imaging, together
with ground-based spectroscopy, will unify absorption-line studies and
faint galaxy imaging studies, providing a comprehensive picture of the
history of assembly, star formation, gas consumption, and chemical
enrichment in the Damped Lyman-Alpha galaxies. The observations were
executed as scheduled, and no anomalies were noted.
1.7 Completed WF/PC-2 7431 (Snapshot Survey of Microlensed Source Stars)
The WF/PC-2 was used to make snapshot survey images of microlensed
source star MACHO-95-3. Gravitational microlensing surveys have revealed
an excess of lensing events over theoretical predictions toward both the
Large Magellanic Cloud and the Galactic Bulge. The observations were
completed as planned, and no anomalies were reported.
1.8 Completed Two Sets of WF/PC-2 7281 (Snapshot Survey of the B2 Sample
of Radio Galaxies)
The WF/PC-2 was used to make snapshot survey observations of the B2
sample radio galaxies B2+0116+31 and B2+1005+28. This program is aimed to
answer the following key questions: How common are extended nuclear disks?
What is their orientation and morphology? How common are optical jets?
The observations were executed as scheduled, and no anomalies were noted.
1.9 Completed WF/PC-2 7470 (A Snapshot Survey of Galactic Globular
Clusters)
The WF/PC-2 was used to make snapshot survey observations of the
crowded center of the galactic globular cluster NGC-6304. The resulting
color-magnitude diagram will include all stars down to about one magnitude
below the main-sequence turnoff. The observations were completed as
scheduled with no problems.
1.10 Completed Two Sets of STIS/CCD 8406 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation V)
The Space Telescope Imaging Spectrograph (CCD) was used to make low
galactic latitude observations taken in parallel with the prime science
observations as part of a POMS proposal. This is a STIS non-scripted
parallel Condition V proposal. The observations were completed as
scheduled, and no anomalies were reported.
1.11 Completed STIS/CCD/WF/PC-2 7388 (Black Holes and the Centers of
Galaxies)
The Space Telescope Imaging Spectrograph (CCD) and the WF/PC-2 were
used to continue our survey of the center of nearby galaxy NGC-4649. The
major goal is to survey an unbiased set of galaxies with a potentially wide
range of black hole masses. The sample has been carefully chosen to
optimize leverage on the character of a proposed correlation of black hole
mass with galaxy mass. A wavelength calibration image was also taken. The
observations were completed as scheduled with no anomalies.
1.12 Completed Two Sets of WF/PC-2 8090 (POMS Test Proposal: WF-II
Parallel Archive Proposal Continuation)
The WF/PC-2 was used in the parallel mode to make some low galactic
latitude archive observations. The program will be used to take parallel
images of random areas of the sky. The observations were executed as
scheduled with no anomalies.
1.13 Completed STIS/CCD/MA1 7508 (Ultraviolet Line Eclipses by
Extrasolar Planets)
The Space Telescope Imaging Spectrograph (CCD and MA1) were used to
make observations of star HD120136 in order to obtain ultraviolet line
eclipses by extrasolar planets. One of the most exciting events in
astronomy last year was the discovery of extrasolar planets. A wavelength
calibration image was also taken. The observations were completed as
planned, and no problems were reported.
1.14 Completed STIS/CCD 8080 (STIS Spectroscopic CCD Flatfielding --
Revised)
The Space Telescope Imaging Spectrograph (CCD) was used to make CCD
flat fielding calibration observations in the spectroscopic mode. The
observations were completed as planned, and no anomalies were reported.
1.15 Completed WF/PC-2 6406 (Intermediate Mass Stars and Unusual Stellar
Mass Limits in a Starburst Galaxy)
The WF/PC-2 was used to make observations of the intermediate mass
stars which are located in the starbursting galaxy IC10. This dwarf
irregular galaxy is the nearest example of the global starburst phenomena.
As such, it offers a unique opportunity to test ideas about the star
formation process in such an environment. The observations were completed
as scheduled, and no problems were reported.
1.16 Completed STIS/CCD 7912 (STIS Parallel Archive Proposal - Nearby
Galaxies - Imaging and Spectroscopy)
The Space Telescope Imaging Spectrograph (CCD) was used to make
parallel observations of nearby galaxies. This survey will be useful to
study the star formation histories, chemical evolution, and distances to
these galaxies. These data will be placed immediately into the Hubble Data
Archive. The observations were completed as scheduled, and no problems
were reported.
2.0 FLIGHT OPERATIONS SUMMARY
2.1 Guide Star Acquisitions:
Scheduled Acquisitions : 7
Successful : 7
Scheduled Reacquisitions : 6
Successful : 6
2.2 FHST Updates:
Scheduled : 18
Successful : 18
Per HSTAR 7163, an FHST map at 161/0405Z did not acquire any stars
in FHST-1. PASSOPS was operating on the PRS ground system at the time.
2.3 Operations Notes:
After transitioning to operating on CCS string "A" in the morning,
operations were transferred to the PRS ground system at 160/2040Z.
Using ROP SR-1, the SSR EDAC error counter was cleared six times.
A WF/PC-2 microprocessor dump was performed at 160/1648Z per ROP NS-4.
As documented in HSTAR 7162, a STIS Echelle/Mode/Calibration (EMC)
retry occurred at 161/010318Z after an apparent movement failure. The STIS
flight software error counter was reset at 161/0117Z as directed by ROP
NS-12.
The SSR pointer was set twice for the CCS 48-hour engineering dump
collection test. This test is being conducted on CCS string "B".
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.
/DMH